Iron isotope fractionation has emerged as a critical tracer for deciphering the complex biogeochemical cycling of iron in soils. This process, whereby natural variations in the relative abundance of ...

1. An assumed constant trophic fractionation of ⁱ⁵N/ⁱ⁴N between consumer and diet (usually 3.4‰ for diet-muscle tissue differences) allows inferences to be made about feeding interactions and trophic ...

A theoretical study reveals how functionalized crown ethers selectively capture light gadolinium isotopes, offering a cleaner, more efficient path for nuclear and planetary science applications.

We combine newly determined isotope fractionation factors of gypsum precipitated in the laboratory with the isotopic compositions of natural anhydrite and gypsum to unravel the sulfate sources of the ...

Deep-sea microbes that “breathe” sulfur prefer that sulfur to be light. In fact, the microbes will “fractionate” heavier sulfur into lighter isotopes. Learning the preferences of these microbes can ...

Atoms are funny things. The tiniest variations can have dramatic macroscopic consequences and, conversely, dramatic macroscopic changes can have subtle influences at the atomic scale. Thus it is that ...

Isotopic analysis primarily involves the separation of isotopes based on the significant differences in mass. The method is effective for identifying the isotopic signature within the inorganic and ...

The Stable Isotope Laboratory in the Department of Geological and Environmental Sciences at Western Michigan University uses known stable isotope techniques for geochemical, hydrological and other ...

Sedimentary rocks created more than 2.4 billion years ago sometimes have an unusual sulfur isotope composition thought to be caused by the action of ultra violet light on volcanically produced sulfur ...

Ancient sediments that once resided on a lake bed and the ocean floor show sulfur isotope ratios unlike those found in other samples from the same time, calling into question accepted ideas about when ...

A team of researchers at The University of New Mexico has uncovered how a peculiar, prehistoric plant might unlock new ways to reconstruct Earth's ancient climate. Led by UNM Earth and Planetary ...